We are trying to fetch file from HDFS (hdfs://10.140.176.148:9000/),we are able to list the files on HDFS however while fetching the file we are getting below error : hdfs.DFSClient: Failed to connect to /192.168.20.8:50010 for block, add to deadNodes and continue. org.apache.hadoop.net.ConnectTimeoutException: 60000 millis timeout while waiting for channel to be ready for connect. ch : java.nio.channels.SocketChannel[connection-pending remote=/192.168.20.8:50010] it seems the IP to which the request is internally redirected is not reachable from our client servers : Client server : 10.141.80.117 10.141.80.119 10.141.80.128 10.141.80.129 10.143.168.75 Could you please help us to resolve the issue . ... View more

I need to remove 1 faulty data node from the cluster and want to shut it down permanently to get all the data replicated on other data nodes. so will it auto start the re-balance if i stop the faulty data node?also what is the best way to do it? @Jay Kumar SenSharma ... View more

what is the possibility / what are the steps for Swift Object Storage in Hadoop ? How feasible is it to use swift object storage in hadoop environment? ... View more

how to create a new kafka cluster using ambari hdp without any other service? ... View more

kindly find the attached file ambari-agent-log.txt fo log details of ambari-agent. ambari-agent not started on all nodes with below message. Verifying ambari-agent process status... ERROR: ambari-agent start failed. For more details, see /var/log/ambari-agent/ambari-agent.out: ==================== 2017-08-24 10:09:11,210 - call[['test', '-w', '/']] {'sudo': True, 'timeout': 5} 2017-08-24 10:09:11,215 - call returned (0, '') 2017-08-24 10:09:11,215 - call[['test', '-w', '/sys/fs/cgroup']] {'sudo': True, 'timeout': 5} 2017-08-24 10:09:11,219 - call returned (0, '') 2017-08-24 10:09:11,219 - call[['test', '-w', '/run/lock']] {'sudo': True, 'timeout': 5} 2017-08-24 10:09:11,224 - call returned (0, '') 2017-08-24 10:09:11,224 - call[['test', '-w', '/run/shm']] {'sudo': True, 'timeout': 5} 2017-08-24 10:09:11,228 - call returned (0, '') 2017-08-24 10:09:11,228 - call[['test', '-w', '/run/user']] {'sudo': True, 'timeout': 5} 2017-08-24 10:09:11,232 - call returned (0, '') kindly look into this if possible. @Jay SenSharma\ Thanks in advance.. ... View more

Hive view is not loading and giving error for ATS test & Hiveserver test. It was working fine previously Its HDP2.4 version. Also hiveserver2 is not working for the cluster. kindly find the attached file for reference.hiveview.png plz help if possible. @Jay SenSharma ... View more

kindly find the attached files for reference.. zklogs1.txt datanode-logs.txt while trying to restart all the services with new configurations after enabling kerberos,failed to start services. ... View more

I am facing mentioned error while trying to enable kerberos in Ubuntu setup. Invalid KDC administrator credentials. Please enter admin principal and password. Although i have known admin credentials still it is giving me error. any kind of help is appreciated. @kkulkarni @Jay SenSharma ... View more

plz find attached log file for further reference.traceback-log.txt After finished deployment & installation of Kerberos, while editing the parameters "hadoop.security.authentication" & "hadoop.security.authorization" in core-site.xml file, all the mentioned services failed to start with the given logs. It is not going to start after the kerberos implementation. plz look into the same & do the needful if possible. @kkulkarni ... View more

Most of the services in the cluster are failed to restart & here i have attached the error logs for one of the services. Also find the attached image of the summary of cluster. I have finished the process of roll back of namenode HA and after that only i am facing this issue. kindly help if possible. ... View more

kerb-namenode-logs.txt Tried to enable kerberos manual way using HDP security guide. After enabling kerberos while following steps , it stopped all services but failed to start any service and giving error. Kindly find the attached file for reference. P.S: in a kerberos installation step while giving the credentials of admin principal its working fine. plz help if possible... @kkulkarni ... View more

kerb1.png The error found while enabling the kerberos using ambari and at the step while kerberised cluster. The principal & credentials are proper which was working before but not taking it right now at this step. Kindly find the attached file for reference. Do the needful if possible. @kkulkarni ... View more